Union normalizing relations with the South. These talks led in 1991 to the Agreement on Reconciliation, Non-Aggression, Exchanges and Cooperation and the Joint Declaration of the Denuclearization of the Korean Peninsula. This coincided with the admission of both North and South Korea into the United Nations. Meanwhile, on 25 March 1991, a unified Korean team first used the Korean Unification Flag at the World Table Tennis Competition in Japan, and on 6 May 1991, a unified team competed at the World Youth Football Competition in Portugal. There were limits to the thaw in relations, however. In 1989, Lim Su-kyung, a South Korean student activist who participated in the World Youth Festival in Pyongyang, was jailed on her return. Sunshine and shadow The end of the Cold War brought economic crisis to North Korea and led to expectations that reunification was imminent. North Koreans began to flee to the South in increasing numbers. According to official statistics there were 561 defectors living in South Korea in 1995, and over 10,000 in 2007. In December 1991 both states made an accord, the Agreement on Reconciliation, Non-Aggression, Exchange and Cooperation, pledging non-aggression and cultural and economic exchanges. They also agreed on prior notification of major military movements and established a military hotline, and working on replacing the armistice with a "peace regime". In 1994, concern over North Korea's nuclear program led to the Agreed Framework between the US and North Korea. In 1998, South Korean President Kim Dae-jung announced a Sunshine Policy towards North Korea. Despite a naval clash in 1999, this led in June 2000, to the first Inter-Korean summit, between Kim Dae-jung and Kim Jong-il. As a result, Kim Dae-jung was awarded the Nobel Peace Prize. The summit was followed in August by a family reunion. In September, the North and South Korean teams marched together at the Sydney Olympics. Trade increased to the point where South Korea became North Korea's largest trading partner. Starting in 1998, the Mount Kumgang Tourist Region was developed as a joint venture between the North Korean government and Hyundai. In 2003, the Kaesong Industrial Region was established to allow South Korean businesses to invest in the North. In the early 2000s South Korea ceased infiltrating its agents into the North. US President George W Bush, however, did not support the Sunshine Policy and in 2002 branded North Korea as a member of an Axis of